/**
 * Copyright 2013 Netflix, Inc.
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.netflix.servo.publish;

import org.testng.annotations.Test;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;

public class PollSchedulerTest {
  @Test
  public void testGetInstance() throws Exception {
    PollScheduler p = PollScheduler.getInstance();
    assertNotNull(p);
  }

  @Test
  public void testStartNoArg() throws Exception {
    PollScheduler.getInstance().start();
    assertTrue(PollScheduler.getInstance().isStarted());
    PollScheduler.getInstance().stop();
  }

  @Test
  public void testStart() throws Exception {
    ScheduledExecutorService s = Executors.newScheduledThreadPool(2);

    PollScheduler.getInstance().start(s);
    assertTrue(PollScheduler.getInstance().isStarted());

    //PollScheduler.getInstance().addPoller( ,60, TimeUnit.SECONDS);

    PollScheduler.getInstance().stop();
  }

  @Test
  public void testStop() throws Exception {
    ScheduledExecutorService s = Executors.newScheduledThreadPool(2);

    PollScheduler.getInstance().start(s);
    assertTrue(PollScheduler.getInstance().isStarted());

    PollScheduler.getInstance().stop();
    assertTrue(!PollScheduler.getInstance().isStarted());
    assertTrue(s.isShutdown());
  }
}
